Monthly Traffic Safety Analysis

1,087 CRASHES IN
VERMONT, VT
MARCH 2011

All metrics benchmarked againstMarch 2010

In March 2011, Vermont recorded 1,087 total crashes, a 57.5% increase from the 690 crashes in March 2010. While total collisions rose significantly, the number of fatalities decreased from 4 to 2. The most notable year-over-year shift was a dramatic increase in crashes on adverse road surfaces, with incidents on snow, ice, or slush roads rising from 29 in the prior period to 292 in the current period.

1,087

57.5%was 690

Total Crash Events

2

-50.0%was 4

Fatal Crashes

165

26.9%was 130

Injury Crashes

2

-50.0%was 4

Fatal Crash Events

Note: "Fatal Crashes" and "Injury Crashes" count crash events — this source publishes crash-level counts only, not individual persons. 2 crashes with unreported severity are not shown in the severity breakdown.

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Aggregate counts from crash, person, and vehicle records

Trend Summary

Year-over-year data indicates a significant upward trend in traffic collisions. Total crashes rose by 57.5%, from 690 in March 2010 to 1,087 in March 2011. The number of injuries also increased by 26.9% from 130 to 165, although total fatalities declined from 4 to 2 over the same period.

When Crashes Happen

The timing of crashes shifted between the two periods. In March 2011, the peak day for crashes was Thursday with 201 incidents, and the peak hour was 3 p.m. with 89 crashes. This differs from March 2010, which saw a peak on Monday (114 crashes) and a peak hour of 5 p.m. (65 crashes). Crashes during the 7 a.m. hour saw a notable increase, rising from 31 incidents to 79 year-over-year.

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Crash date field aggregated by weekday

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Crash time field aggregated by hour (0-23)

Crash Severity Breakdown

While the total number of crashes increased, their average severity decreased year-over-year. The proportion of crashes resulting in an injury fell from 18.8% in March 2010 to 15.2% in March 2011. Similarly, fatal crashes accounted for 0.2% of all incidents in the current period, down from 0.6% in the prior period. Consequently, the share of no-injury crashes increased from 79.9% to 84.5% of the total.

Outcome by Severity (Crash Events)

Fatal2fatal crashes0.2%
-50.0%prior 4
Injury165minor injury crashes15.2%
26.9%prior 130
No Injury918no injury crashes84.5%
66.6%prior 551

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Severity derived from reported fatal/injury indicators (no KABCO A/B/C codes)

Severity Distribution (Crash Events)

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Most severe injury per crash record

Road & Environmental Conditions

Adverse road and weather conditions were significantly more prevalent in crashes during March 2011 compared to the previous year. Crashes on roads with snow, ice, or slush surged from 29 incidents (4.2% of total) in March 2010 to 292 (26.9% of total) in March 2011. Correspondingly, crashes during freezing precipitation increased from 18 to 171. In contrast, the proportion of crashes in daylight conditions remained stable, at 75.2% in the current period versus 75.8% in the prior period.

Weather

Clear521 (53.4%)
25.5%prior 415
Cloudy220 (22.5%)
64.2%prior 134
Freezing Precipitation171 (17.5%)
850.0%prior 18
Rain55 (5.6%)
-29.5%prior 78
Wind9 (0.9%)

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Weather condition at time of crash

Lighting

Daylight817 (76.8%)
56.2%prior 523
Dark247 (23.2%)
50.6%prior 164

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Lighting condition field

Road Surface

Dry495 (50.4%)
-2.4%prior 507
Wet184 (18.7%)
65.8%prior 111
Snow182 (18.5%)
2175.0%prior 8
Ice74 (7.5%)
640.0%prior 10
Slush36 (3.7%)
227.3%prior 11
Sand, mud, dirt, oil, gravel5 (0.5%)
-28.6%prior 7
Other - Explain in Narrative5 (0.5%)
Water (standing / moving)1 (0.1%)

Source: Vermont Crash Data · Arcgis Open Data · 2011-03-01 to 2011-03-31 · Road surface condition field

Data Sources & Methodology

Primary Data Source

All crash data in this report is sourced from Vermont Crash Data, accessed programmatically via the Arcgis Open Data API (SODA). This dataset contains official police-reported motor vehicle traffic crash records maintained by the reporting jurisdiction's law enforcement agency. Records are published to the open data portal by the municipality and are subject to the portal's terms of use.

Data Retrieval

  • Access method: Arcgis Open Data API (SoQL queries)
  • Data format: Structured JSON via REST API
  • Record types queried: Crash events, person records, and vehicle unit records
  • Date filter applied: 2011-03-01 through 2011-03-31
  • Report generated: July 5, 2026

Data Coverage

  • Reporting period: 2011-03-01 through 2011-03-31 (31 days)
  • Geographic scope: vermont, VT
  • Total crash records analyzed: 1,087

Analytical Methodology

  • Severity classification: Uses the KABCO injury scale (K=Fatal, A=Incapacitating injury, B=Non-incapacitating injury, C=Possible injury, O=No injury/property damage only), the standard classification in U.S. Model Minimum Uniform Crash Criteria (MMUCC). Severity is assigned per crash event based on the most severe injury in that crash. A single fatal crash (K) may involve multiple fatalities; therefore the "Persons Killed" count in the headline KPIs may differ from the "Fatal" crash count in the severity breakdown.
  • Contributing factors: Reflect the officer-determined primary contributory cause recorded at the time of the crash report. These are preliminary determinations and may not reflect final investigation findings.
  • Hit-and-run classification: Based on the hit-and-run indicator field in the official crash report, as determined by the responding officer at the scene.
  • Temporal analysis: Day-of-week and hour-of-day distributions are computed from the crash date/time timestamp in each record.
  • Demographics: Age and sex distributions are drawn from person-level records linked to each crash event. A single crash may involve multiple persons.
  • Vehicle data: Make information is drawn from vehicle unit records linked to each crash event.
  • AI commentary: Narrative sections are generated by Google Gemini (large language model) based on the structured data. Commentary is descriptive, not predictive, and should not be interpreted as expert opinion.

Limitations & Disclaimers

  • Only crashes reported to and documented by law enforcement are included. Minor incidents, unreported crashes, and near-misses are not captured in this dataset.
  • Data reflects conditions at the time of the initial police report and may be subject to subsequent corrections, reclassifications, or supplements by the reporting agency.
  • Open data portal records may experience a publication lag - recently occurring crashes may not yet appear in the dataset at the time of report generation.
  • AI-generated commentary is produced by a large language model and is intended to highlight patterns in the data. It does not constitute legal, medical, or professional analysis.
  • Percentages are calculated from reported data and are subject to rounding.

Non-Affiliation Disclosure

This report is produced independently by ThatCarHitMe.com (Injuria.ai). It is not affiliated with, endorsed by, or produced in partnership with any law enforcement agency, municipal government, state department of transportation, or the National Highway Traffic Safety Administration (NHTSA). Data is sourced from publicly available government open data portals.

Data License

The underlying crash data is provided under the municipality's Open Data Terms of Use and is made available to the public for unrestricted use. This analysis and report is © 2026 Injuria.ai and may be cited with attribution using the suggested citation below.

Corrections & Feedback

If you believe any data in this report is inaccurate or have questions about our methodology, please contact: data@injuria.ai. We are committed to accuracy and will issue corrections promptly.

Suggested Citation

ThatCarHitMe.com (Injuria.ai). "vermont, VT Crash Intelligence Report: March 2011." Published July 5, 2026. Reporting period: 2011-03-01 to 2011-03-31. Data source: Vermont Crash Data, Arcgis Open Data. Available at: https://thatcarhitme.com/crash-data/vermont/statewide/march-2011-report

About the Publisher

ThatCarHitMe.com is a crash data intelligence platform developed by Injuria.ai, a legal technology company specializing in traffic safety analytics. We aggregate and analyze publicly available government crash data to produce structured intelligence reports for communities, researchers, journalists, and legal professionals. Our reports combine programmatic data retrieval from official open data portals with AI-assisted narrative analysis.

Questions about this report's data or methodology: data@injuria.ai

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Vermont (Statewide) Crash Report — March 2011 | ThatCarHitMe.com